AP8821 Datasheet - APLUS Integrated Circuits

AP8821 Voice OTP IC

aP8821 is a high quality voice synthesizer capable of varying playback duration. A proprietary ADPCM algorithm is used. The audio message is stored in a 512K bits on-chip EPROM which can store up to 21 seconds of voice data at 6 KHz sample rate. The aP8821 eliminates the need of complicated circuitr.

AP8821 Features

* 21 Sec Voice Length at 6 KHz Combination of voice building blocks extends the duration of playback Voice data re-use saves memory space Maximum 14 voice groups 4 trigger pins, S1 to S4 for the 4 voice groups ( group1 ~ 4 ) SBT for sequential playblack for the rest of voice groups & CPU mode trigger

AP8821_APLUSIntegratedCircuits.pdf